Sunshine Electronics Ltd records its inventory of Smile Luminous backpacks by using a perpetual inventory system on a FIFO basis. The following details are supplied for one particular popular make and model for the month of November. Complete the worksheet using FIFO, LIFO and Moving Average.

1 may Balance of 20 backpacks costed at $155

6 May Purchased 20 backpacks at $160 each

10 May Sold 15 backpacks at $300 each

15 May Purchased 10 backpacks at $180 each

18 May Sold 30 backpacks at $320

22 May Purchased 20 backpacks at $170 each

30 May Sold 12 backpacks at $310 each